Improvement in buildings



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JB iJOHNSON AND ELIJAH D. DAVIS, OF BROOKLYN, 'NEW YORK.` Letters Patent No. 68,884, dated September 17, 1867.`

IMPROVEMENT IN BUILDINGS.'

TO ALL WHOM IT MAY CONGERN:

Be it known that we, Jon JOHNSON and ELIJAH D. Dnv'rs, of Brooklyn, in the county of Kings, andState of New York, have invented and made a certain new and useful Improvement in Buildings, dtc.; and we do herebydeclare the following to be a full, clear, and exactrdescription of the said invention, `reference being had to the annexed drawing, making part of this specification, whereinv Figures 1 and 2 are sections of-our said improvement, showing the manner in whch'the roof or sidingboards are renderedtight at the joints; and i i Figure 3 is a view showing the side of a root` near the peak, illustrating the mode of construction. Similar marks of reference denote the same parts. 4 ,i

The nature of our said invention consists in a meansrfor rendering the joints of roofing or siding-boards l water-(tight, and at the same time'allowing such boards to expand and contract under the influence of the i; atmosphere. For this purpose We make use of strips of tin or other sheet material, introduced with the edges secured in grooves near the edges of the planks or boards, and corrugated, so that'the boards mayexpand or contract in their width, the corrugations of the metallic strips allowing this motion to take place without the 1 joint being broken.

In the drawing, a a represent portions of planks or boards that are grooved near the edges, as seen at' b.

The boards are secured by nails or screws to the timbers of the building along the central portions, so that the edges will be free to expand or contract beneath buttons or strips c, that are held in place by nails or screws d 1 passing through between the edgeof one board and the edge of the next, or through notches made in one or i both edges. The buttons or plates or strips c may be upon the surfacerof the boards, or let down into recesses in the wood. The grooves b are to be made with one side nearly at right angles to the surface of the board, and one side inclined, so asto receive the edge of theA-formed or corrugated stripof metal or other sheet i material. Said strip is to be secured by tacks or nails, and the groove and strip are to be painted o r `otherwise protected from the elements, and we prefer to have the groove filled with putty or cement.` The shape ofthe corrugated strip c may be simply that of an inverted trough, or it may be made with a double` corrugation,

resembling a W, as seen in fig. 2.

The edges of the boards, beingitted so as to allow for expansion and contraction, as aforesaid, may be. fitted with the corrugated strip of sheet material over the joints, with its edges secured by nailing to the sur-` face of the wood. These corrugated strips may be made of any desired length, or set together in sections.V

This improvement may be applied to'the joints of the planks in boats or vessels, to reuderthe same watertight, and prevent leakage -by the contraction of the wood.

v What We claim, and desire to secure by Letters Patent, isi The buttons or plates to secure the edges,but allow the boards to expand or contract, in combination with` a strip of metal or similar material, secured to the edges and covering the joints, substantially as set foi-th.

In witness whereof we have hereunto set our signatures this thirteenth day ofAApril, D. 1867.

JOB JOHNSON,

ELIJAH D. DAVIS.

Witnesses: v

Cues. H. SMITH, GEO. D. WALKER. 

